Propeller.



J. BAUER.

PROPELLER.

APPLICATION FILED AUG.5, 1914 Patented June 29, 1915.

Inventor Witnesses THE NORRIS PETERS 60., FHOTD-LITHO.. WASHINGTON. D. C.

JOHN BAUER, OF LOUISVILLE, KENTUCKY.

rRorELLER.

intense. I

xspecification of Letters Patent.

Patented June 29, 1915.

, Application filed August 5, 1914. Serial N 0. 855,272.

To all whom it may concern:

Be it known that 1, JOHN BAUER, a citizen of the United States, residing at Louisville, in the county of Jefierson and State .of Kentucky, have invented a new and useful Propeller, of which the following is a specification.

The present invention relates to improvements in propellers, the same being constructed for use particularly with an car, or a paddle and normally submerged, the pull stroke operating the members to resist the water pressure while the return stroke operates such members more freely without resisting the water, thus rendering it unnecessary to lift the present device from the water as is customary with paddles or oars.

A further object of the present invention is the provision of a means whereby the water resisting members which are pivoted, and normally limited in their movements may be adjusted relatively toeach other so as to have a free swinging movement and thus offer no resistance to the water when car or paddle is moved in any direction.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawingsFigure l'is a view in elevation of one of the complete propellers detached from its oar. Fig. 2 is a side elevation thereof. Fig. 3 is a section taken on line 3-3 of Fig. 1, the sections of the paddle being in the position they assume when resisting water pressure. Fig. 4 is a view similar to Fig. 3 showing the paddles in the position they assume when operated upon the return stroke. Figs. 5 and 6 perspective views showing two ways of attaching the present propeller devices to an oar.

Referring to the drawings, each paddle consists of a frame 1 provided with a socket member 2 which by means of the screw 3 is attached to the oar 4:, said oar 4 being adapted to have one end fitted within each socket 2 and thus permit the ported thereby.

When the present device is used as a canoe or skiff paddle, the socket 2 is at-- tached to the end of the handle instead of at right angles thereto. A plurality of rods 6 have one end mounted in a fixed journal in the side 7 of the frame 1 while the opposite end extends through an arcuate slot 8, in the side 9 of the frame, such arcuate slot being of a size to permit of the elevation or lowering of the rod and consequently the water resisting or feathering member 10, so that such members may be permitted free swinging movement or be limited in the swinging movement due to the overlapping relation of the sections at their free ends and the hinging end of the adjacent section.

In order to limit the swinging movement of the paddle sections 10, as clearly illustrated in Fig. 4:, the plate 11 is attached to the side 7 of the frame and is provided with the lugs 12 and 13, the lug 12 limiting the movement of the sections 10 to the full open position, as illustrated in Fig. 4.

In order to provide a means for moving the rods 6 and consequently the sections 10 carried thereby, the arcuate slots 8 being provided, a plurality of short levers l6 and along lever 16 are provided, the levers 16 being pivoted at 17 to the frame 9 and the lever 16 being pivoted in the arm or lug 17 also attached to the frame. Each of the respective levers 16 and 16 are connected to the rods 6 of the three sections 10 so that when the levers are actuated, the rods are moved in the arcuate slots 8, and as the opposite end of each rod is mounted in a fixed journal and as the parts overlap upon an incline, as shown in Fig. 1, in full and dotted lines, the rod 6 in the arcuate slot of each member is lowered so as to be placed below the lower end of its adjacent section 10, so that the lower end of the section above will be permitted free passage beyond the member below so that the respective sections will be permitted a free swinging movement for operation at either side, or for a pull or push stroke.

In order to operate the various levers 16 and 16 simultaneously, a link 20 connects the free end, and such link 20 is connected at 21 to the lever 22, such lever 22 being pivoted intermediate of its ends to the lug paddles to be supso i 23 carried by the frame 1 adjacent the socket member 2. To the opposite free end of the lever 22 is connected a cable 24, which is led along the oar or paddle a or 4, as illustrated in Figs. 5 and 6, so that the operatorv may at any time actuate the lever 22 against the action of the spring 19, which is connected to the long terminal 18 of the lever 16 and normally'holds the sections 10' in the. desired overlapping relation. As soon as the cable 24 is released, the parts will assume the position, as shown in Fig. 1, While when the cable is pulled upon, the link 20 will bemoved and consequently elevate the ends of the rods 6 within the arcuate slots 8 to place the adjacent edges of the adjacent sections in parallel and out of overlapping relation and thus permit the free edges thereof to be shifted to either side. The lower paddle 10 is limited in its movement when lowered by the stops 25.

WVha-t is,'claimed is:

1. A propeller, including a stirrup-shaped frame, a plurality of water engaging sections pivoted therein and transversely of the frame, means attached to the frame and adjacent section for limiting the swinging movement of said sections and whereby when the same is moved upon the pull stroke, the sections are in a vertical plane and when moved in an opposite direction move outwardly and separate to permit the free passage thereof through the water, the adjacent portions of the sections being overlapped, and means for changing the relative positions of the sections to place the adjacent edges in'parallel for free movement relative to each other. 7

2. A paddle, including a stirrup-shaped open frame, a plurality of rods journaled transversely thereof, one end of each rod being mounted in a fixed journal, while the other end is mounted in an arcuate slot formed in the opposite side of the stirrupshaped frame, a paddle section carried by each rod, the lower edge of one paddle normally overlapping the upper edge of the adjacent paddle and such edges being out of parallel, and means for limiting the swinging movement of the paddle.

A paddle, including a stirrup-shaped open frame, a plurality of rods journaled transversely thereof, one end of each rod being mounted in a fixed journal, while the other end is mounted in an arcuate slot formed in the opposite side of the stirrupshaped frame, a paddle section carried by each rod, the lower edge of one paddle normally overlapping the upper edge of the adjacent paddle and such edges being out of parallel, means for limiting the swinging movement of the paddle, and means connected to the rods adjacent to the arcuate slot portion of the frame for normally holding the sections in overlapping relation.

4. A paddle, including a stirrup-shaped open frame, a plurality of rods journaled transversely thereof, one end of the rod being mounted in a fixed journal,while the other end is mounted in an arcuate slot formed in the opposite side of the stirrupshaped frame, a paddle section carried by each rod, the lower edge of one paddle normally overlapping the upper edge of, the adjacent paddle and such edges being out of parallel, means for limiting the swinging movement of the paddles, a plurality of levers pivoted to the-frame'and operably connected to the ends of the rods adjacent the arcuate slot, means for connecting all of said levers for operation in unison, a spring connected to one of the levers for holding the paddles normally in overlapping reiation, and manually controlled means for operating the levers to place the adj acent edges of the paddles parallel and out of contact.

In testimony that I claim the foregoing as my own, I have heretoaffixed my signature inthe presence of two witnesses.

JOHN BAUER.

Witnesses:

AnoLr vVu'RMsnn, HENRY TURNER.

Copies of this patent may be obtained for five cents each, by addressing'the Commissioner of Patents Washington, D. C. 

